Cultivator



(NoMoael'.)

' `AH. H. SATER.

GULTIVATOR.

Patented Apr. 2Q, 1884.

DTO-.291637.

Jima'.

' bar elevated. Figs. 3,

FFICE.

PATENT al? HANS H. SATER, OF DUBUQUE, VIOVA.

CULTIVATOR.

555PIEICIIl-"ICATIOIN forming part of Letters Patent No. 297,637, dated April 29, 1884. v

Application led August 31, 1883. (No model.)

To all whom, it may con/cern:

Be it known that I, HANS H. SATER, of Du` buque, in the county of Dubuque and State of Iowa, have invented anew and useful Improvement in Attachments for Cultivators; and I do hereby declare that the following is a full, clear, and exact description ofthe same.

My invention relates to attachments for cultivators, the object of which isV to hold the shovel-bar either in'or out of working position, as desired, and whenin working position to hold it in contact with the ground, so that it may cut constantly at the proper depth.

. The invention consists in combining with the axles and coupling of the oultivator a joining connection-rod and a spring secured to the arch of the axle 5 further, in combination with such connecting-rod, spring, and rod, a roller working on the tra-ck secured to the arch of the axle 5 and,further, in various details of construction, all fully hereinafter explained, and illustrated in the accompanying drawings, in Which- Figure l is a perspective view of the operation of the axle and arch of the cultivator, and a shovel-bar with my adjustments in the position it assumes when the shovel is on the ground. Fig. 2is a similar view with shovel- 4, 5, and 6 represent details; and Fig. 7 is a modied form of the spring. ,n

In these drawings, X represents the arch shape of the cultivator-axle. Y

Y represents the horizontal extremity of such axle. S represents one of the shovelI bars broken away, and T is a universal-joint coupling connecting the shovel-bar tothe axle, permitting it a horizontal and vertical adjustment.' A represents a semi-tubular sleeve, secured by a clamp, F, passing through lugs E E, to the outside of the vertical portion of the arch.

Bolted to a projection, D, extendingatright angles from the upper end of the sleeve, is a spring, B, formed by doubling the dat piece of spring metal, as shown, and by forming its lower end into an eye, a, all as shown in Fig. 4. The end of the spring` in which this eye is formed is connected to a fork on the upper end of the bar G. (Shown in details in Fig. 5.)

This bar extends parallel lwith the vertical part of the arch, and at or about its center is provided with bearings, in which is journaled a roller, J. This roller runs upon a curvedtrack, H', in a plate, H, secured to or forming part of the sleeve A.

At the outer end of the plate H there is a deep depression and an outward curve,which limits the movement of the roller in that direction. The lower en'd of the bar G is coupled by means of apin, 0, to astandard, K,clamped to the axle-sleeve T ofthe plow-coupling. The connection of the standard to the axle is formed by indentations, notches, and ribs to the meeting surface, and by making the sleeve of anguiar form to fit the base of the standard. The standard K thus forms a part of the coupling and shovel-bar, and moves with the same, working on the pin O. j

As shown in Fig. 2, the effect of elevating the shovel-bar by the driver through the ordinary means for that purpose is to cause the roller to travel on its track and the standards K and bar G to take a position at an angle to each other. The tension of the spring B thus Vcauses the shovel to remain elevated until forcibly depressedby the Alever under the control` of the driver.

When the plow is in the ground, the par-ts assume the'position shown in Fig. l, the tendency of the spring at that time being in the position to hold the plow in opposite position at a regular and uniform depth.

Ihave shown in Fig. 7 a modied form of spring, in which eyes are formed in both ends and a roller journaled in such eyes.

I do not wish to confine myself to the par-` ticular location of this spring-connection in relation to the plow-frame, because there are other classes of devices adapted to be raised or lowered, in which it might be used to an advantage.

I claim as my invention- 1. The comtinanoawith the shovel-bars, ofy

the pivoted standards K, the lever G', the spring secured to the said lever and connected to the frame of the cultivator, and the roller .I audits curved track. j

2. Combined with the arch of the cultivator, axles, semi-tubular sleeve A, curved track H', in combination with the spring B,secured Ioo to said sleeve, the bzu G, having zu roller, and In testimony whereof I have signed mynnme a pvoted standard, K, connected to the shovto this speoiention in the presence of two snb- 1o' el-bars. seribing witnesses.

3. The combination with the Coupling T and i T A 1 5 the bars attached theteto, of the standard K, HAAS H' SAH'ER looked to such coupling, the bnr G, 11m/ing VitnesSes: forked ends, and the spring B, connected to ALEX. SIMPLO'I, the semtubu1ar sleeve A. Y P. KIENE. 

